1. ffmpeg
  2. Commit b8edf91657ad9fa2f0c5175c9ca8fbe3c8b0c624
Browse code

lavfi/histeq: fix out of array write

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Paul B Mahol authored on 2013/04/17 09:21:17
Showing 1 changed files
libavfilter/vf_histeq.c
History View file @ b8edf91
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@@ -235,7 +235,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *inpic)
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                 dst[x + histeq->rgba_map[R]] = r;
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                 dst[x + histeq->rgba_map[G]] = g;
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                 dst[x + histeq->rgba_map[B]] = b;
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-                oluma = (55 * r + 182 * g + 19 * b) >> 8;
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+                oluma = av_clip_uint8((55 * r + 182 * g + 19 * b) >> 8);
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                 histeq->out_histogram[oluma]++;
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             }
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         }